Kale - form of cabbage with green or purple leaves
"Kale, or leaf cabbage, belongs to a group of cabbage cultivars grown for their edible leaves, although some are used as ornamentals. Kale plants have green or purple leaves, and the central leaves do not form a head. Kales are considered to be closer to wild cabbage than most of the many domesticated forms of Brassica oleracea. - Wikipedia"